./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-dietlibc/strpbrk.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13721fac-087a-4b86-b083-0786f88e57cf/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13721fac-087a-4b86-b083-0786f88e57cf/bin/ukojak-jW3SillKbg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13721fac-087a-4b86-b083-0786f88e57cf/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13721fac-087a-4b86-b083-0786f88e57cf/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-dietlibc/strpbrk.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13721fac-087a-4b86-b083-0786f88e57cf/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13721fac-087a-4b86-b083-0786f88e57cf/bin/ukojak-jW3SillKbg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash edf491a8dfccfa6378da1f67984511795182afc470c7adf35a0acc959fae5609 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 22:35:45,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 22:35:45,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 22:35:45,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 22:35:45,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 22:35:45,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 22:35:45,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 22:35:45,558 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 22:35:45,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 22:35:45,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 22:35:45,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 22:35:45,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 22:35:45,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 22:35:45,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 22:35:45,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 22:35:45,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 22:35:45,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 22:35:45,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 22:35:45,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 22:35:45,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 22:35:45,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 22:35:45,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 22:35:45,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 22:35:45,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 22:35:45,581 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 22:35:45,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 22:35:45,582 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 22:35:45,583 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 22:35:45,583 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 22:35:45,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 22:35:45,584 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 22:35:45,585 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 22:35:45,586 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 22:35:45,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 22:35:45,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 22:35:45,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 22:35:45,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 22:35:45,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 22:35:45,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 22:35:45,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 22:35:45,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 22:35:45,592 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13721fac-087a-4b86-b083-0786f88e57cf/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-21 22:35:45,630 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 22:35:45,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 22:35:45,633 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 22:35:45,633 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 22:35:45,634 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 22:35:45,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 22:35:45,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 22:35:45,635 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 22:35:45,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 22:35:45,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 22:35:45,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 22:35:45,637 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 22:35:45,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 22:35:45,637 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 22:35:45,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 22:35:45,638 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 22:35:45,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 22:35:45,638 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 22:35:45,638 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 22:35:45,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 22:35:45,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 22:35:45,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 22:35:45,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 22:35:45,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 22:35:45,640 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-21 22:35:45,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 22:35:45,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 22:35:45,640 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13721fac-087a-4b86-b083-0786f88e57cf/bin/ukojak-jW3SillKbg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13721fac-087a-4b86-b083-0786f88e57cf/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edf491a8dfccfa6378da1f67984511795182afc470c7adf35a0acc959fae5609 [2022-11-21 22:35:45,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 22:35:45,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 22:35:45,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 22:35:46,000 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 22:35:46,001 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 22:35:46,003 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13721fac-087a-4b86-b083-0786f88e57cf/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/termination-dietlibc/strpbrk.i [2022-11-21 22:35:49,201 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 22:35:49,422 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 22:35:49,423 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13721fac-087a-4b86-b083-0786f88e57cf/sv-benchmarks/c/termination-dietlibc/strpbrk.i [2022-11-21 22:35:49,443 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13721fac-087a-4b86-b083-0786f88e57cf/bin/ukojak-jW3SillKbg/data/860fb3d2e/6d5cf9a2092848d283d58a11bfe00e2c/FLAGc357d1360 [2022-11-21 22:35:49,457 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13721fac-087a-4b86-b083-0786f88e57cf/bin/ukojak-jW3SillKbg/data/860fb3d2e/6d5cf9a2092848d283d58a11bfe00e2c [2022-11-21 22:35:49,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 22:35:49,461 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 22:35:49,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 22:35:49,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 22:35:49,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 22:35:49,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:35:49" (1/1) ... [2022-11-21 22:35:49,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@357ef0e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:49, skipping insertion in model container [2022-11-21 22:35:49,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:35:49" (1/1) ... [2022-11-21 22:35:49,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 22:35:49,507 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 22:35:49,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 22:35:49,837 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 22:35:49,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 22:35:49,898 INFO L208 MainTranslator]: Completed translation [2022-11-21 22:35:49,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:49 WrapperNode [2022-11-21 22:35:49,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 22:35:49,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 22:35:49,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 22:35:49,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 22:35:49,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:49" (1/1) ... [2022-11-21 22:35:49,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:49" (1/1) ... [2022-11-21 22:35:49,945 INFO L138 Inliner]: procedures = 113, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2022-11-21 22:35:49,945 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 22:35:49,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 22:35:49,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 22:35:49,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 22:35:49,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:49" (1/1) ... [2022-11-21 22:35:49,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:49" (1/1) ... [2022-11-21 22:35:49,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:49" (1/1) ... [2022-11-21 22:35:49,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:49" (1/1) ... [2022-11-21 22:35:49,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:49" (1/1) ... [2022-11-21 22:35:49,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:49" (1/1) ... [2022-11-21 22:35:49,967 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:49" (1/1) ... [2022-11-21 22:35:49,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:49" (1/1) ... [2022-11-21 22:35:49,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 22:35:49,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 22:35:49,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 22:35:49,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 22:35:49,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:49" (1/1) ... [2022-11-21 22:35:49,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 22:35:49,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13721fac-087a-4b86-b083-0786f88e57cf/bin/ukojak-jW3SillKbg/z3 [2022-11-21 22:35:50,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13721fac-087a-4b86-b083-0786f88e57cf/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-21 22:35:50,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13721fac-087a-4b86-b083-0786f88e57cf/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-21 22:35:50,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 22:35:50,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 22:35:50,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 22:35:50,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 22:35:50,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 22:35:50,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 22:35:50,215 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 22:35:50,217 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 22:35:50,457 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 22:35:50,473 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 22:35:50,473 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 22:35:50,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:35:50 BoogieIcfgContainer [2022-11-21 22:35:50,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 22:35:50,476 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-21 22:35:50,476 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-21 22:35:50,487 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-21 22:35:50,487 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:35:50" (1/1) ... [2022-11-21 22:35:50,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 22:35:50,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:35:50,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2022-11-21 22:35:50,583 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2022-11-21 22:35:50,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-21 22:35:50,585 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:35:50,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:35:50,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:35:50,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:35:50,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:35:50,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 20 states and 26 transitions. [2022-11-21 22:35:50,827 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2022-11-21 22:35:50,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-21 22:35:50,828 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:35:50,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:35:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:35:50,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:35:51,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:35:51,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2022-11-21 22:35:51,008 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2022-11-21 22:35:51,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 22:35:51,008 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:35:51,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:35:51,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:35:51,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:35:51,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:35:51,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2022-11-21 22:35:51,161 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2022-11-21 22:35:51,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 22:35:51,161 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:35:51,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:35:51,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:35:51,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:35:51,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:35:51,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 17 states and 23 transitions. [2022-11-21 22:35:51,378 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2022-11-21 22:35:51,379 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 22:35:51,379 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2022-11-21 22:35:51,389 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-11-21 22:35:51,431 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 22:35:51,435 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 22:35:51,436 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 22:35:51,436 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 22:35:51,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 10:35:51 ImpRootNode [2022-11-21 22:35:51,437 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-21 22:35:51,438 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 22:35:51,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 22:35:51,438 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 22:35:51,439 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:35:50" (3/4) ... [2022-11-21 22:35:51,442 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 22:35:51,451 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-21 22:35:51,452 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 22:35:51,452 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 22:35:51,452 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 22:35:51,502 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13721fac-087a-4b86-b083-0786f88e57cf/bin/ukojak-jW3SillKbg/witness.graphml [2022-11-21 22:35:51,503 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 22:35:51,504 INFO L158 Benchmark]: Toolchain (without parser) took 2042.11ms. Allocated memory was 144.7MB in the beginning and 180.4MB in the end (delta: 35.7MB). Free memory was 103.1MB in the beginning and 136.6MB in the end (delta: -33.5MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2022-11-21 22:35:51,504 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 109.1MB. Free memory is still 60.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 22:35:51,505 INFO L158 Benchmark]: CACSL2BoogieTranslator took 436.49ms. Allocated memory is still 144.7MB. Free memory was 103.1MB in the beginning and 87.5MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 22:35:51,505 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.13ms. Allocated memory is still 144.7MB. Free memory was 87.5MB in the beginning and 85.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 22:35:51,506 INFO L158 Benchmark]: Boogie Preprocessor took 24.66ms. Allocated memory is still 144.7MB. Free memory was 85.4MB in the beginning and 84.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 22:35:51,507 INFO L158 Benchmark]: RCFGBuilder took 504.53ms. Allocated memory is still 144.7MB. Free memory was 84.2MB in the beginning and 71.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 22:35:51,508 INFO L158 Benchmark]: CodeCheck took 960.72ms. Allocated memory was 144.7MB in the beginning and 180.4MB in the end (delta: 35.7MB). Free memory was 71.6MB in the beginning and 138.7MB in the end (delta: -67.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 22:35:51,508 INFO L158 Benchmark]: Witness Printer took 65.30ms. Allocated memory is still 180.4MB. Free memory was 138.7MB in the beginning and 136.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 22:35:51,512 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 21 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92 IncrementalHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 0 mSDtfsCounter, 92 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 518]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 518]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 522]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 522]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 514]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 509]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 506]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56ms. Allocated memory is still 109.1MB. Free memory is still 60.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 436.49ms. Allocated memory is still 144.7MB. Free memory was 103.1MB in the beginning and 87.5MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.13ms. Allocated memory is still 144.7MB. Free memory was 87.5MB in the beginning and 85.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.66ms. Allocated memory is still 144.7MB. Free memory was 85.4MB in the beginning and 84.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 504.53ms. Allocated memory is still 144.7MB. Free memory was 84.2MB in the beginning and 71.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 960.72ms. Allocated memory was 144.7MB in the beginning and 180.4MB in the end (delta: 35.7MB). Free memory was 71.6MB in the beginning and 138.7MB in the end (delta: -67.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 65.30ms. Allocated memory is still 180.4MB. Free memory was 138.7MB in the beginning and 136.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-21 22:35:51,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13721fac-087a-4b86-b083-0786f88e57cf/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE